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Phrase(s): (I’m) afraid not. [and] ’Fraid not.
I believe, regrettably, that the answer is no. (The apostrophe is not always shown.) • Rachel: Can I expect any help with this problem? Henry: I’m afraid not. • Andrew: Will you be there when I get there? Bill: Afraid not.
McGrawhill's American Idioms And Phrasal Verbs